XDSP

This is an implementation of the legacy DirectX SDK utility header DSP math functions using DirectXMath.

See this blog post for more details.

API

All functions are in the C++ namespace XDSP.

All memory buffers used with these functions must be 16-byte aligned. This happens by default for x64, but requires alignment or use of __aligned_malloc with x86 or ARM.

FFT - Fast Fourier Transform with an arbitrary number of samples.
FFT4 - Four sample Fast Fourier Transform.
FFT8 - Eight sample Fast Fourier Transform.
FFT16 - Sixteen sample Fast Fourier Transform.
FFTInitializeUnityTable - Initializes unity roots lookup table used by Fast Fourier Transform functions (FFT, FFTDeinterleaved, and FFTInterleaved)
FFTPolar - Converts complex components to polar form.
FFTUnswizzle - Arranges Fast Fourier Transform function output by order of increasing frequency.
Interleave - Interleaves audio samples.
Deinterleave - Deinterleaves audio samples.
FFTInterleaved - Fast Fourier Transform, plus deinterleaves multichannel audio before processing.
IFFTDeinterleaved - Fast Fourier Transform, plus interleaved multichannel audio.

All content and source code for this package are subject to the terms of the MIT License.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.